Merge branch 'core/percpu' into percpu-cpumask-x86-for-linus-2
[linux-2.6.git] / net / ipv4 / af_inet.c
index 3a3dad8..7f03373 100644 (file)
@@ -369,7 +369,6 @@ lookup_protocol:
        sock_init_data(sock, sk);
 
        sk->sk_destruct    = inet_sock_destruct;
-       sk->sk_family      = PF_INET;
        sk->sk_protocol    = protocol;
        sk->sk_backlog_rcv = sk->sk_prot->backlog_rcv;
 
@@ -1253,10 +1252,10 @@ static struct sk_buff **inet_gro_receive(struct sk_buff **head,
        int proto;
        int id;
 
-       if (unlikely(!pskb_may_pull(skb, sizeof(*iph))))
+       iph = skb_gro_header(skb, sizeof(*iph));
+       if (unlikely(!iph))
                goto out;
 
-       iph = ip_hdr(skb);
        proto = iph->protocol & (MAX_INET_PROTOS - 1);
 
        rcu_read_lock();
@@ -1264,13 +1263,13 @@ static struct sk_buff **inet_gro_receive(struct sk_buff **head,
        if (!ops || !ops->gro_receive)
                goto out_unlock;
 
-       if (iph->version != 4 || iph->ihl != 5)
+       if (*(u8 *)iph != 0x45)
                goto out_unlock;
 
        if (unlikely(ip_fast_csum((u8 *)iph, iph->ihl)))
                goto out_unlock;
 
-       flush = ntohs(iph->tot_len) != skb->len ||
+       flush = ntohs(iph->tot_len) != skb_gro_len(skb) ||
                iph->frag_off != htons(IP_DF);
        id = ntohs(iph->id);
 
@@ -1282,24 +1281,25 @@ static struct sk_buff **inet_gro_receive(struct sk_buff **head,
 
                iph2 = ip_hdr(p);
 
-               if (iph->protocol != iph2->protocol ||
-                   iph->tos != iph2->tos ||
-                   memcmp(&iph->saddr, &iph2->saddr, 8)) {
+               if ((iph->protocol ^ iph2->protocol) |
+                   (iph->tos ^ iph2->tos) |
+                   (iph->saddr ^ iph2->saddr) |
+                   (iph->daddr ^ iph2->daddr)) {
                        NAPI_GRO_CB(p)->same_flow = 0;
                        continue;
                }
 
                /* All fields must match except length and checksum. */
                NAPI_GRO_CB(p)->flush |=
-                       memcmp(&iph->frag_off, &iph2->frag_off, 4) ||
-                       (u16)(ntohs(iph2->id) + NAPI_GRO_CB(p)->count) != id;
+                       (iph->ttl ^ iph2->ttl) |
+                       ((u16)(ntohs(iph2->id) + NAPI_GRO_CB(p)->count) ^ id);
 
                NAPI_GRO_CB(p)->flush |= flush;
        }
 
        NAPI_GRO_CB(skb)->flush |= flush;
-       __skb_pull(skb, sizeof(*iph));
-       skb_reset_transport_header(skb);
+       skb_gro_pull(skb, sizeof(*iph));
+       skb_set_transport_header(skb, skb_gro_offset(skb));
 
        pp = ops->gro_receive(head, skb);
 
@@ -1500,8 +1500,8 @@ static int ipv4_proc_init(void);
  *     IP protocol layer initialiser
  */
 
-static struct packet_type ip_packet_type = {
-       .type = __constant_htons(ETH_P_IP),
+static struct packet_type ip_packet_type __read_mostly = {
+       .type = cpu_to_be16(ETH_P_IP),
        .func = ip_rcv,
        .gso_send_check = inet_gso_send_check,
        .gso_segment = inet_gso_segment,